In the questions I have below it says a bowl has eight ping pong balls numbered 1,2,2,3,4,5,5,5. You pick a ball at random.
a. Find p(the number on the ball drawn is ≥ 3).
b. Find p(the number on the ball drawn is even).
answer for Qa:
when you pick a ball at random, each ball in the 8 balls has equal opportunity to be picked, say 1/8.
Consider the condition that there are 8 balls in ...
This shows how to find probability in a given situation with ping pong balls.